I te mea kua tino puāwai te umanga otaota i ngā tau kua taha ake nei, kua tere ake te pikinga o te wāhi o te mākete e pā ana ki ngā tango otaota. Tae noa ki tēnei wā, e rua ngā momo tango otaota, arā, ngā tango butane me ngā tango CO2 tino kaha, kua puta ai te nuinga o ngā matū kukū e wātea ana i te mākete.
Heoi anō, ko te tuatoru o ngā whakarewa, ko te etanoru, kua piki ake te rongonui o te butane me te CO2 tino kaha hei whakarewa pai mā ngā kaihanga e hanga ana i ngā tango otaota kounga teitei. Koinei te take e whakapono ana ētahi ko te etanoru te whakarewa pai rawa atu mō te tango otaota.
Kāore he whakarewa e tino tika ana mō te tango otaota i ngā āhuatanga katoa. Ko te pūtāne, te whakarewa warowaihā e whakamahia ana i tēnei wā, e paingia ana mō tōna kore-polarity, e āhei ai te mīhini tango ki te hopu i ngā otaota me ngā terpene e hiahiatia ana mai i ngā otaota me te kore e tango tahi i ngā mea kāore e hiahiatia ana tae atu ki te chlorophyll me ngā matūkai tipu. Nā te iti o te pāmahana kohua o te pūtāne ka māmā ake te tango mai i te kukū i te mutunga o te tukanga tango, ka waiho he hua taha parakore.
Ahakoa rā, he tino mura te butane, ā, ko ngā kaihanga tango butane kāinga koretake te take o ngā kōrero maha mō ngā pahūtanga i hua ake ai ngā whara kino, me te whakakino i te ingoa o te tango otaota. Hei tāpiri, ko te butane kounga iti e whakamahia ana e ngā kaihanga tango kino ka pupuri i te maha o ngā paitini e kino ana ki te tangata.
Ko te CO2 tino whakahāwea, i whakanuia mō tōna haumaru i runga i te paitini me te pānga ki te taiao. Heoi anō, ko te tukanga purenga roa e hiahiatia ana hei tango i ngā wāhanga i tangohia tahitia, pērā i ngā ware pi me ngā ngako tipu, mai i te hua i tangohia, ka taea te tango i te kōtaha otaota me te terpenoid whakamutunga o ngā tango i puta i te wā o te tangohanga CO2 tino whakahāwea.
Ko te tikanga o te etanoru koia tonu: he whai hua, he whai hua, ā, he haumaru hoki ki te whakahaere. E whakarōpūtia ana te etanoru e te FDA hei "Whānuitanga e kiia ana he Haumaru," ko te tikanga he haumaru mō te kai a te tangata. Nō reira, he mea whakamahi noa hei tiaki kai me te tāpiringa, e kitea ana i roto i ngā mea katoa mai i te whakakī kirīmi i roto i tō tōnati ki te karāhe waina e pai ana koe i muri i te mahi.
Ahakoa he haumaru ake te etanoru i te butane, ā, he whai hua ake i te CO2 tino kaha, kāore he raruraru o te tango etanoru paerewa. Ko te arai nui rawa atu ko te polarity o te etanoru, ka tere te whakaranu o te whakarewa polar [pēnei i te etanoru] ki te wai, ka memeha hoki ngā ngota wairewa. Ko te chlorophyll tētahi o ngā matū ka ngāwari te tango tahi ina whakamahia te etanoru hei whakarewa.
Mā te tikanga tango etanoru cryogenic ka taea te whakaiti i te chlorophyll me ngā lipid i muri i te tangohanga. Engari nā te roa o te wā tangohanga, te iti o te pai o te whakaputanga, me te nui o te kaha e pau ana, kāore e taea te whakaatu i ngā painga o te tango etanoru.
Ahakoa kāore e pai te mahi a te tikanga tātari tuku iho, inā koa i roto i te mahi arumoni, ka puta te kōkō i roto i te Mīhini Whakamātautau Poto Ara nā te chlorophyll me ngā lipid, ā, ka moumou tō wā whakaputa utu nui hei utu mō te horoi.
Mā te rangahau me te whakamātautau i roto i ngā marama maha, i taea e te Tari Hangarau o Gioglass te whakaaro i tētahi tikanga hei pure i te chlorophyll me ngā lipid i roto i ngā rauemi tipu i muri i te tangohanga. Mā tēnei mahi motuhake ka taea te hanga i te tangohanga etanoru i te pāmahana rūma. Mā tēnā ka tino whakaiti i te utu whakaputa i roto i te whakaputa otaota.
I tēnei wā, kei te whakamahia tēnei tukanga motuhake i te USA me te raina whakaputa otaota o Zimbabwe.
Wā tuku: Whiringa-ā-rangi 20-2022
